论文部分内容阅读
裂球是甘蓝生产中存在的一个严重问题。本研究通过对7份春甘蓝和8份秋甘蓝不同耐裂性材料的田间裂球方式、裂球率、裂球程度的比较,综合最大裂口层数、裂口面积的表现,建立了甘蓝耐裂球性评价方法并制定了甘蓝个体裂球分级标准。根据春甘蓝叶球成熟后5天、秋甘蓝叶球成熟后15天的裂球指数将甘蓝种质群体的耐裂球性分为极耐裂球、耐裂球、中耐裂球、易裂球、极易裂球5级。对59份春、秋甘蓝种质进行耐裂球性鉴定筛选获得一批极耐裂甘蓝种质资源。同时,对甘蓝室内成熟叶球浸泡法评价耐裂球性进行了初探,首次提出室内浸泡能够准确地鉴定甘蓝的耐裂球性,可用于选育耐裂球品种及生产实践。本研究制定出了一套春、秋甘蓝耐裂球性的田间及室内鉴定方法与标准,筛选获得了不同甘蓝耐裂球种质,为甘蓝耐裂球性研究和育种应用提供技术支撑和优异材料。
Cracking the ball is a serious problem in the production of cabbage. In this study, field crack resistance, cracking rate and cracking rate of seven spring cabbage and eight autumn cabbage varieties were compared, and the maximum cracking number and the area of the split were combined to establish the cracking resistance of cabbage Evaluation methods and the development of the individual cracking of cabbage grading standards. According to the five days after ripening of P. koraiensis leaves, the split index of 15 days after maturation of the leaves of B. korshinskii divided the population of crack resistance of the population of B. korshinskii into extremely fragile, fragile, Cracked ball 5. Fifty-nine spring and autumn cabbage germplasms were selected for identification of poplar germplasms to obtain a number of germplasm resources resistant to Brassica. In the meantime, the evaluation of crack resistance of mature cabbage leaf in soaking cabbage was carried out. The indoor soaking for the first time was able to identify the cracking resistance of cabbage accurately, which could be used to breed crack-resistant varieties and produce practice. In this study, a set of spring and autumn cabbage cracked ball field and indoor identification methods and standards were screened to obtain different varieties of cabbage cracked germplasm, for the cracking of poplar research and breeding applications to provide technical support and excellent materials.